An AC motor can be turned into an AC generator by
A)reversing the poles of the permanent magnets.
B)applying a reverse voltage to the terminals of the motor.
C)mechanically rotating the coils instead of applying a voltage to the coil.
D)replACing the magnet with an armature coil and vice versa.
E)applying a DC voltage instead of an AC voltage.

Question

Quizplus · Accepted Answer

A motor can be turned into a generator by mechanically rotating the coils instead of applying a voltage to the coil. This is because an AC motor and an AC generator both rely on the principle of electromagnetic induction, whereby a moving magnetic field induces an electrical current in a conductor. By rotating the coils in a motor, a magnetic field can be created and induced voltage can be generated in the coils. Therefore, reversing the poles or applying a reverse voltage would not necessarily turn the motor into a generator, while replacing the magnet with an armature coil would require significant modifications to the motor's construction. Finally, applying a DC voltage would not create an alternating magnetic field, which is required for AC generators.

An AC Motor Can Be Turned into an AC Generator